Description
The Garmin GT56UHD-TH is a 12-pin thru-hull transducer that combines high-wide CHIRP traditional sonar with Ultra High-Definition ClearVü and SideVü scanning sonar for detailed views below and to the sides of the boat.
Main Features
- High-wide CHIRP traditional sonar
- Ultra High-Definition ClearVü scanning sonar
- Ultra High-Definition SideVü scanning sonar
- 12-pin Garmin sonar connection
- 25 ft transducer cable length
Sonar Performance
Traditional high-wide CHIRP operates across 150–240 kHz. ClearVü and SideVü support 455, 800 and 1000 kHz scanning frequencies. The traditional element is rated at 350 W and the ClearVü/SideVü elements at 500 W.
Installation
This is a thru-hull installation and should be matched to hull construction, deadrise and the intended mounting location. Follow Garmin installation guidance and confirm that the chartplotter or sonar module supports the 12-pin GT56UHD connection.
What’s in the Box
- GT56UHD-TH thru-hull transducer
- Stainless steel stem
- Fairing block
- Isolation plate and bushings
- Extension cable, mounting hardware and documentation
Specifications
- Model: GT56UHD-TH
- Part number: 010-02732-10
- Mount: Thru-hull
- Connector: 12-pin
- Cable length: 25 ft
- Traditional sonar: High-wide CHIRP, 150–240 kHz, 350 W
- Scanning sonar: ClearVü and SideVü, 455/800/1000 kHz, 500 W
- Data: Depth and temperature

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